Well, I guess that the number of tags may vary within a tag cloud, but the number of categories has to be enlarged for sure
You use good layout and nice design all artical looks very proffestional i think header is not looks nice, what you say?
Great informative site. Maybe you can put in related YouTube videos in there as well to make it even more amazing.
Very regular color theme using by you but it is very good looks according to me you should need a good header.
The Site is good but there is problem of spacing between the POSTS and you need to justify the posts it will look more tidy.